Flood prevention device and flood prevention method for water conservancy project

Abstract

The invention discloses a flood prevention device and method for a water conservancy project, and relates to the technical field of new energy building engineering. The flood prevention device and method for the water conservancy project comprise power generation water outlet pipes, the liquid injection end, extending out of a pool body, of each power generation water outlet pipe is provided with a movable sealing device, the movable sealing devices are arranged to control opening and closing of the liquid injection ends under the action of buoyancy or pressure, each movable sealing device comprises a guide rod, one end of each guide rod is arranged in the corresponding liquid injection end, and each guide rod is slidably connected with a floating plate; the inner wall of the liquid injection end of the power generation water outlet pipe is connected with a pressing ring, and a floating control liquid injection device is arranged above the liquid guide plate and used for controlling water flow to enter the power generation water outlet pipe under the action of buoyancy. According to the flood prevention device and method for the water conservancy project, through cavity division and liquid outlet amount design and screening of the use opportunity, siphon drainage can be started only when the rainfall reaches the early warning rainfall, water injection and sealing of all the power generation water outlet pipes are automatically completed at a time, and drainage is facilitated to be assisted through the siphon effect.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy construction engineering, and particularly relates to a flood control device and a flood control method for water conservancy projects. Background Art

[0002] New energy construction engineering refers to the engineering that combines renewable energy technologies such as solar energy, wind energy, geothermal energy, and biomass energy with building design, construction, and operation, aiming to achieve the low-carbon, energy-saving, and sustainable development of buildings. In new energy construction projects, if water conservancy facilities or complex terrain areas are involved, flood control of branch canals or rivers is an important link to ensure project safety and avoid the impact of flood disasters. When heavy rain or the flood season arrives, when the water level in the flood discharge canal or flood discharge river approaches or exceeds the warning water level, it is necessary to drain the water in time to avoid flood damage to new energy buildings or downstream areas.

[0003] Referring to Chinese Patent Publication No.: CN118704393A, a river ecological slope protection. It includes a slope body, a mounting member, a water flow power generation member, a breeding box, a garbage collection assembly, a garbage transportation assembly, a protection member, and an auxiliary assembly. The mounting member is arranged in the middle of the river. The water flow power generation member, the breeding box, and the garbage collection assembly are located on the mounting member. The garbage transportation assembly and the protection member are located on the slope body. Multiple groups of auxiliary assemblies are suspended along the garbage transmission end.

[0004] When using siphon action to assist in draining the flood discharge canal or flood discharge pool, manually insert one end of the pipeline into the pool body, set the other end outside the pool and fill it with water, seal one end of the pipeline outside the pool body with the palm and move it downwards. After forming a height difference at both ends of the pipeline, the siphon drainage is completed. Reasonably increase the number of pipelines according to the total water volume in the pool body and the water volume increase rate. However, the pipeline is a slender pipe with a small diameter, which is not easy to fill with water, and each time of filling with water and moving downwards requires dragging the pipeline, which is not convenient to use. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a flood control device and a flood control method for water conservancy projects. Through the design of cavity separation and liquid output volume, the use time is screened, and the siphon drainage can only be started when the rainfall reaches the warning rainfall. The water injection and sealing of all power generation and water discharge pipes are automatically completed at one time, which is convenient for using siphon action to assist in drainage.

[0006] Technical solution: To achieve the above objectives, the present invention is realized through the following technical solutions: A flood control device for water conservancy projects, comprising: a power generation water outlet pipe, one end of the power generation water outlet pipe extends into the pool body, the other end of the power generation water outlet pipe is placed on the liquid guide plate, and a movable sealing device is provided at the liquid injection end of each power generation water outlet pipe extending out of the pool body. The movable sealing device is configured to control the opening and closing of the liquid injection end under the action of buoyancy or pressure. The movable sealing device includes: a guide rod, one end of the guide rod is arranged inside the liquid injection end, the guide rod is slidably connected with a floating plate, the inner wall of the liquid injection end of the power generation water outlet pipe is connected with a pressure ring, and a floating control liquid injection device is arranged above the liquid guide plate. The floating control liquid injection device is used to control the water flow into the power generation water outlet pipe under the action of buoyancy.

[0007] Preferably, the diameter of the pressure ring gradually decreases and then gradually increases along the direction of the diameter of the guide rod. The diameters at both ends of the pressure ring are equal. The diameter in the middle of the pressure ring is smaller than the diameter of any other part of the pressure ring. The diameter in the middle of the pressure ring is smaller than the diameter of the floating plate. The pressure ring is made of an elastic material.

[0008] Preferably, a filter box is connected to the inner wall at a corner of the pool body. The side of the filter box is provided with filter holes. The bottom wall of the filter box is connected with a number of equally spaced positioning blocks. One end of each power generation water outlet pipe extending into the pool body is connected with a straight pipe. An elastic sealing ring is connected to the side of each power generation water outlet pipe. A first fixing plate is installed on one side of the pool body. A number of equally spaced first holes are provided through one side of the first fixing plate. Each first hole is connected with an elastic sealing ring. A second hole is provided through the middle of one side of the positioning block. The straight pipe is inserted into the second hole.

[0009] Preferably, the floating control liquid injection device includes: a power generation liquid accumulation box, the power generation liquid accumulation box is connected to the top of the liquid guide plate away from the pool body through a connecting block. A partition is connected to the inner wall of the power generation liquid accumulation box. The partition divides the inner cavity of the power generation liquid accumulation box into a liquid separation cavity and a liquid accumulation cavity. A floating member is connected to the bottom wall of the liquid accumulation cavity. A first liquid outlet hole is provided through the bottom wall of the liquid accumulation cavity. A filter plate is connected to the top of the power generation liquid accumulation box. A number of equally spaced second liquid outlet holes are provided through the bottom wall of the liquid separation cavity. Each second liquid outlet hole is located directly above one end of the liquid guide plate away from the pool body. A liquid inlet hole is provided through the partition. The diameter of the first liquid outlet hole is larger than the diameter of the second liquid outlet hole.

[0010] Preferably, the floating member includes: a floating ball disposed in the liquid accumulation cavity. A positioning rod is connected to the center of the bottom wall of the liquid accumulation cavity. The top end of the positioning rod passes through the inner wall of the floating ball and is slidably connected to the inner wall of the floating ball. A support plate is connected to the side of the middle part of the positioning rod. A baffle is connected to the top end of the positioning rod. The floating ball is connected to a sliding plate through a third connecting plate. A guide rail is connected to the side of the partition away from the pool body. The guide rail is slidably connected to the sliding plate. The sliding plate is used to control the opening and closing of the liquid inlet control.

[0011] Preferably, the included angle between the axis of the straight pipe and the axis of the power generation water outlet pipe is 10-20°, and the liquid injection end of the power generation water outlet pipe is higher than the end of the power generation water outlet pipe extending into the pool body.

[0012] Preferably, the moving and sealing device further includes: a second fixing plate. There are several second fixing plates. One end of each second fixing plate close to the pool body is connected to one end of the power generation water outlet pipe. One end of each second fixing plate away from the pool body is connected to the side of the end of the guide rod away from the pool body through a first connecting plate. Several second connecting plates evenly distributed at equal intervals in the circumferential direction are connected to the side of the other end of the guide rod. One side of each second connecting plate is connected to the inner wall of the power generation water outlet pipe. The diameter of the floating plate is smaller than the inner diameter of the power generation water outlet pipe.

[0013] Preferably, when the rainfall is less than the warning rainfall, all the rainwater in the liquid accumulation cavity flows out from the first liquid outlet hole. When the rainfall reaches the warning rainfall, the water level in the liquid accumulation cavity rises.

[0014] A flood control method includes a water conservancy project flood control device. One end of several power generation water outlet pipes is fixed in the pool body, and the other end of the power generation water outlet pipe is placed on the liquid guide plate. When the rainfall reaches the warning rainfall, the water level in the liquid accumulation cavity rises, the buoyancy of the floating ball increases, the floating ball drives the sliding plate to move upward, the sliding plate no longer seals the liquid inlet hole, and the rainwater in the liquid accumulation cavity sequentially passes through the liquid distribution cavity, the second liquid outlet hole cavity, and the liquid guide plate and flows into the power generation water outlet pipe. At the same time, all the power generation water outlet pipes are filled with water. The rainwater in the power generation water outlet pipe continuously increases, and the floating plate moves upward along the axis of the guide rod under the action of buoyancy and presses against the pressure ring. During this process, the air in the power generation water outlet pipe is squeezed out and the sealing state of the power generation water outlet pipe is maintained. The liquid injection end of the power generation water outlet pipe is removed from the liquid guide plate and placed in the groove. The water in the power generation water outlet pipe inclines downward, and the liquid injection end of the power generation water outlet pipe changes from being higher than the end of the power generation water outlet pipe extending into the pool body to being lower than the end of the power generation water outlet pipe extending into the pool body. The floating plate in the power generation water outlet pipe is taken out, and the siphon effect is used to assist in drainage. The number of drainage power generation water outlet pipes is increased according to the drainage situation in the pool.

[0015] Beneficial effects: The present invention provides a flood control device and a flood control method for water conservancy projects. Compared with the prior art, the following beneficial effects are achieved: 1. Through the design of the divided cavity and the liquid discharge amount, the use time is screened, and the siphon drainage can only be started when the rainfall reaches the warning rainfall. All the water injection and sealing of the power generation water outlet pipes are automatically completed at one time, which is convenient for using the siphon effect to assist drainage and inject water into the power generation water outlet pipes. While discharging the air in the power generation water outlet pipes, the floating plate is lifted by buoyancy, so that the floating plate presses against the pressure ring, playing a role in sealing the liquid injection end of the power generation water outlet pipe to meet the conditions for siphon. The structure is simple, the cost is low, it is suitable for mass production, reduces manual operation, and saves time and effort.

[0016] 2. When removing the floating plate from the power generation water outlet pipe, Method 1: The central position on the side of the floating plate away from the pool body can be connected to the bottom of the liquid guide pipe through a rope, and the floating plate can be pulled out from the pressure ring through the rope; Method 2: The movement of the floating plate is controlled by the buoyancy of the floating plate, its own gravity, and the pressure between the floating plate and the pressure ring, so that the floating plate can only move out from the middle of the pressure ring when it is subjected to the downward pressure of water. The first method requires manual assistance, which increases the labor force, but has low requirements for the structure and is easy to implement. The second method has a high degree of automation, but has high requirements for the precision of the cooperation between structures.

[0017] 3. The diameter of the first liquid outlet hole is 3 to 5 times the diameter of the second liquid outlet hole. Only when the rainfall within 6 hours is greater than 50 mm, within a certain period or a continuous period, the amount of rainwater entering the liquid accumulation cavity per unit time is greater than the amount of rainwater discharged from the first liquid outlet hole per unit time. At this time, the water level in the liquid accumulation cavity rises, and the floating ball may drive the sliding plate to move upward, so that the rainwater in the liquid accumulation cavity enters the liquid separation cavity, which can avoid rainwater entering the power generation water outlet pipe through the liquid separation cavity during the non-flood season or a short-term heavy rain period. Only in the flood season or during continuous heavy rain, rainwater may enter the power generation water outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present application and, together with the specification, are further used to explain the principles of the present application and enable those skilled in the relevant art to implement and use the present application.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of the present invention.

[0021] Figure 2 is Figure 1 a schematic cross-sectional view of

[0022] Figure 3 is Figure 1 a schematic structural view after removing the pool body and the liquid outlet pipe.

[0023] Figure 4 is a separation diagram of the part where the power generation water outlet pipe is located and the float-controlled liquid injection device.

[0024] Figure 5 is a schematic structural view of the part where the power generation water outlet pipe is located.

[0025] Figure 6 is a separation diagram of the part where the power generation water outlet pipe is located.

[0026] Figure 7 is a schematic structural view of the straight pipe, the power generation water outlet pipe, the moving seal device, and the elastic sealing ring.

[0027] Figure 8 is a schematic structural view of the moving seal device and a part of the power generation water outlet pipe.

[0028] Figure 9 is a schematic cross-sectional view of the elastic sealing ring.

[0029] Figure 10 is a schematic structural view of the float-controlled liquid injection device.

[0030] Figure 11 is a schematic cross-sectional view of the float-controlled liquid injection device.

[0031] Figure 12 is a schematic structural view of the floating member.

[0032] The reference numerals in the figure are: 1, pool body; 21, filter box; 22, filter holes; 23, positioning block; 24, power generation water outlet pipe; 25, first fixing plate; 26, first hole; 27, straight pipe; 28, elastic sealing ring; 29, second hole; 3, moving seal device; 31, first connecting plate; 32, guide rod; 33, second connecting plate; 34, pressing ring; 35, second fixing plate; 36, floating plate; 4, float-controlled liquid injection device; 41, connecting block; 42, power generation liquid accumulation box; 43, partition board; 44, filter plate; 45, first liquid outlet hole; 46, floating member; 461, floating ball; 462, positioning rod; 463, support plate; 464, baffle; 465, third connecting plate; 466, guide rail; 467, sliding plate; 47, liquid separation cavity; 48, second liquid outlet hole; 49, liquid accumulation cavity; 5, liquid outlet pipe; 6, liquid guide plate.

[0033] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device, and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications still fall within the scope of the appended claims. Detailed implementation manners

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0036] Embodiment 1: As Figure 1 - Figure 12 shown, an embodiment of the present invention provides a flood control device for water conservancy projects, including: a power generation outlet pipe 24, one end of the power generation outlet pipe 24 extends into the pool body 1, the other end of the power generation outlet pipe 24 is placed on the liquid guide plate 6, and a movable sealing device 3 is provided at the liquid injection end of each power generation outlet pipe 24 extending out of the pool body 1. The movable sealing device 3 is configured to control the opening and closing of the liquid injection end under the action of buoyancy or pressure. The movable sealing device 3 includes: a guide rod 32, one end of the guide rod 32 is arranged inside the liquid injection end, a floating plate 36 is slidably connected to the guide rod 32, a pressure ring 34 is connected to the inner wall of the liquid injection end of the power generation outlet pipe 24, and a floating control liquid injection device 4 is arranged above the liquid guide plate 6. The floating control liquid injection device 4 is used to control the water flow into the power generation outlet pipe 24 under the action of buoyancy.

[0037] A filter box 21 is connected to the inner wall at a corner of the pool body 1. Filter holes 22 are formed through the side surface of the filter box 21. A plurality of equally spaced positioning blocks 23 are connected to the bottom wall of the filter box 21. One end of each power generation outlet pipe 24 extending into the pool body 1 is connected to a straight pipe 27. An elastic sealing ring 28 is connected to the side surface of each power generation outlet pipe 24. A first fixing plate 25 is installed on one side of the pool body 1. A plurality of equally spaced first holes 26 are formed through one side of the first fixing plate 25. Each first hole 26 is connected to an elastic sealing ring 28. A second hole 29 is formed through the middle of one side of the positioning block 23, and the straight pipe 27 is inserted into the second hole 29.

[0038] The floating liquid injection device 4 includes: a power generation liquid accumulation box 42. The power generation liquid accumulation box 42 is connected to the top of the end of the liquid guide plate 6 away from the pool body 1 through a connecting block 41. A partition plate 43 is connected to the inner wall of the power generation liquid accumulation box 42. The partition plate 43 divides the inner cavity of the power generation liquid accumulation box 42 into a liquid distribution cavity 47 and a liquid accumulation cavity 49. A floating member 46 is connected to the bottom wall of the liquid accumulation cavity 49. A first liquid outlet hole 45 is penetrated and provided on the bottom wall of the liquid accumulation cavity 49. A filter plate 44 is connected to the top of the power generation liquid accumulation box 42. A plurality of second liquid outlet holes 48 are penetrated and provided on the bottom wall of the liquid distribution cavity 47 at equal intervals. Each second liquid outlet hole 48 is arranged directly above the end of a liquid guide plate 6 away from the pool body 1. The partition plate 43 is penetrated and provided with a liquid inlet hole. The diameter of the first liquid outlet hole 45 is larger than that of the second liquid outlet hole 48.

[0039] The diameter of the first liquid outlet hole 45 is 3 to 5 times that of the second liquid outlet hole 48, ensuring that the rainfall within 6 hours in the local area is not greater than 50 millimeters, or it has reached 50 millimeters or more and the rainfall is unlikely to continue. In this case, all the rainwater entering the liquid accumulation cavity 49 can be discharged from the first liquid outlet hole 45, avoiding the accumulation of rainwater in the liquid accumulation cavity 49. Only when the rainfall within 6 hours is greater than 50 millimeters, during a certain period or a continuous period, the amount of rainwater entering the liquid accumulation cavity 49 per unit time is greater than the amount of rainwater discharged from the first liquid outlet hole 45 per unit time. At this time, the water level in the liquid accumulation cavity 49 rises, and the floating ball 461 may drive the slide plate 467 to move upward, enabling the rainwater in the liquid accumulation cavity 49 to enter the liquid distribution cavity 47.

[0040] It is possible to prevent rainwater from entering the power generation water outlet pipe 24 through the liquid distribution cavity 47 during the non-flood season or a short-term heavy rain period. Only in the flood season or during continuous heavy rain, rainwater may enter the power generation water outlet pipe 24.

[0041] The floating member 46 includes: a floating ball 461. The floating ball 461 is arranged in the liquid accumulation cavity 49. A positioning rod 462 is connected to the center of the bottom wall of the liquid accumulation cavity 49. The top end of the positioning rod 462 passes through the inner wall of the floating ball 461 and is slidably connected to the inner wall of the floating ball 461. A support plate 463 is connected to the side surface of the middle part of the positioning rod 462. A baffle plate 464 is connected to the top end of the positioning rod 462. The floating ball 461 is connected to a slide plate 467 through a third connecting plate 465. A guide rail 466 is connected to the side of the partition plate 43 away from the pool body 1. The guide rail 466 is slidably connected to the slide plate 467. The slide plate 467 is used to control the opening and closing of the liquid inlet control.

[0042] The included angle between the axis of the straight pipe 27 and the axis of the power generation water outlet pipe 24 is 10 - 20°. The liquid injection end of the power generation water outlet pipe 24 is higher than the end of the power generation water outlet pipe 24 extending into the pool body 1.

[0043] The axis of the straight pipe 27 has a certain inclination angle with the axis of the power generation water outlet pipe 24, and the power generation water outlet pipe 24 is inclined upward. An inclination degree is set to facilitate the injection of water into the power generation water outlet pipe 24 and squeeze out the air in the power generation water outlet pipe 24.

[0044] When the included angle between the axis of the straight pipe 27 and the axis of the power generation water outlet pipe 24 is 10°, the inclination angle of the power generation water outlet pipe 24 is small, the water inlet speed is slowed down, the degree of collision between water and the pipe wall is reduced, the vibration of the air in the power generation water outlet pipe 24 is weakened, and the noise is reduced.

[0045] When the included angle between the axis of the straight pipe 27 and the axis of the power generation water outlet pipe 24 is 20°, the inclination angle of the power generation water outlet pipe 24 is large and the inclination degree increases. Under the action of gravity, the driving force of water flowing in the pipe is enhanced. According to the principle of fluid mechanics, within a certain range, the greater the inclination degree of the pipe, the greater the component force of the gravity of water along the pipe direction, and the faster the water flow rate. Therefore, the water injection speed can be accelerated; the larger inclination degree helps water flow faster in the pipe, reduces the possibility of air accumulation in the pipe, and makes it easier to form a siphon.

[0046] The moving sealing device 3 further includes: a second fixing plate 35. There are several second fixing plates 35 in total. One end of each second fixing plate 35 close to the pool body 1 is connected to one end of the power generation water outlet pipe 24. One end of each second fixing plate 35 away from the pool body 1 is connected to the side surface of the far end of the guide rod 32 away from the pool body 1 through a first connecting plate 31. The side surface of the other end of the guide rod 32 is connected with several second connecting plates 33 evenly distributed at equal intervals in the circumferential direction. One side of each second connecting plate 33 is connected to the inner wall of the power generation water outlet pipe 24. The diameter of the floating plate 36 is smaller than the inner diameter of the power generation water outlet pipe 24.

[0047] An impulse water turbine is arranged in the drainage channel below the power generation liquid accumulation box 42. The impeller of the impulse water turbine is coaxially connected with the generator. The water flowing out from the power generation liquid accumulation box 42 and the power generation water outlet pipe 24 will both impact the impeller of the impulse water turbine, and auxiliary power generation is carried out through the power generation liquid accumulation box 42 and the power generation water outlet pipe 24.

[0048] When the rainfall is less than the warning rainfall, all the rainwater in the liquid accumulation cavity 49 flows out from the first liquid outlet hole 45. When the rainfall reaches the warning rainfall, the water level in the liquid accumulation cavity 49 rises.

[0049] A flood control method, including a flood control device for water conservancy projects. One end of a number of power generation outlet pipes 24 is fixed in the pool body 1, and the other end of the power generation outlet pipe 24 is placed on the liquid guide plate 6. When the rainfall reaches the warning rainfall, the water level in the liquid accumulation cavity 49 rises, the buoyancy of the floating ball 461 increases, the floating ball 461 drives the slide plate 467 to move upward, and the slide plate 467 no longer seals the liquid inlet hole. The rainwater in the liquid accumulation cavity 49 sequentially passes through the liquid distribution cavity 47, the second liquid outlet hole 48 cavity, and the liquid guide plate 6 and flows into the power generation outlet pipe 24. At the same time, all the power generation outlet pipes 24 are filled with water. The rainwater in the power generation outlet pipe 24 continuously increases, and the floating plate 36 moves upward along the axis of the guide rod 32 under the action of buoyancy and presses the pressure ring 34. During this process, the air in the power generation outlet pipe 24 is squeezed out and the sealing state of the power generation outlet pipe 24 is maintained. The liquid injection end of the power generation outlet pipe 24 is removed from the liquid guide plate 6 and placed in the groove. The water in the power generation outlet pipe 24 inclines downward, and the liquid injection end of the power generation outlet pipe 24 changes from being higher than the end extending into the pool body 1 of the power generation outlet pipe 24 to being lower than the end extending into the pool body 1 of the power generation outlet pipe 24. The floating plate 36 in the power generation outlet pipe 24 is taken out, and the siphon effect is used to assist drainage. The number of drainage power generation outlet pipes 24 is increased according to the drainage situation in the pool.

[0050] During use, the straight pipe 27 is inserted into the second hole 29 of the positioning block 23, and one end of the straight pipe 27 and the power generation outlet pipe 24 is fixed in the pool water. The liquid injection end of the power generation outlet pipe 24 is placed on the liquid guide plate 6, and the power generation outlet pipe 24 inclines upward with a small elevation angle for easy water injection. When the rainfall reaches the warning rainfall (when the rainfall is greater than 50 mm within 6 hours, or the rainfall is greater than 50 mm within a shorter time), the first liquid outlet hole 45 cannot drain all the rainwater in the liquid accumulation cavity 49. The rainwater in the liquid accumulation cavity 49 increases, the water level in the liquid accumulation cavity 49 rises, the buoyancy of the floating ball 461 increases, and the floating ball 461 drives the slide plate 467 to move upward through the third connecting plate 465. The slide plate 467 no longer seals the liquid inlet hole, and the rainwater in the liquid accumulation cavity 49 flows into the liquid distribution cavity 47 through the liquid inlet hole. The rainwater in the liquid distribution cavity 47 flows into the liquid guide pipe through all the second liquid outlet holes 48. The liquid guide pipe is adapted to the power generation outlet pipe 24, and most of the rainwater in the liquid guide pipe flows into the power generation outlet pipe 24. Through the design of the first liquid outlet hole 45 and the slide plate 467 sealing the liquid inlet hole, when the rainfall is lower than the warning rainfall, the rainwater cannot enter the liquid distribution cavity 47 and the power generation outlet pipe 24. In the daily use scenario, the liquid injection end of the power generation outlet pipe 24 will not take in water, and the quality of the power generation outlet pipe 24 on the liquid guide plate 6 is low, reducing the load on the liquid guide plate 6 and the power generation outlet pipe 24, and it will not cause the situation that the power generation outlet pipe 24 needs clean water during the flood season or heavy rain. Using the cavity separation design and the liquid discharge capacity of the first liquid outlet hole 45, it automatically adapts to the flood season or continuous heavy rain weather and only starts to be used when the rainfall reaches the warning rainfall, without manual adjustment.

[0051] The water level of all the power generation outlet pipes 24 rises, and the air in the power generation outlet pipes 24 is pressed out by the water. The buoyancy of the floating plates 36 in the power generation outlet pipes 24 increases, and the floating plates 36 move upward along the axis of the guide rods 32. The floating plates 36 approach and squeeze the pressure rings 34. The pressure rings 34 are made of elastic materials, and the squeezed parts of the pressure rings 34 are recessed. The floating plates 36 tightly press the pressure rings 34, so that the floating plates 36 seal the liquid injection ends of the power generation outlet pipes 24. The central position of the floating plates 36 on the side away from the pool body 1 can be connected to the bottom of the liquid guide pipe through a rope. Manually remove the liquid injection end of the sealed power generation outlet pipe 24 from the liquid guide plate 6 and place it in the drainage ditch. The liquid injection end of the power generation outlet pipe 24 changes from being higher than the end extending into the pool body 1 of the power generation outlet pipe 24 to being lower than the end extending into the pool body 1 of the power generation outlet pipe 24. Pull the rope to pull the floating plates 36 out from the pressure rings 34. The floating plates 36 move to the outside of the power generation outlet pipes 24. At this time, the floating plates 36 no longer block the openings of the liquid injection ends. Under the action of siphonage, the water in the pool flows into the drainage ditch through the straight pipes 27 and the power generation outlet pipes 24, and the power generation outlet pipes 24 are used to assist in draining the pool body 1.

[0052] The water injection work of all the power generation outlet pipes 24 is automatically completed at one time, without manual water injection or manual sealing of the water injection ends of the power generation outlet pipes 24, which is convenient to use.

[0053] According to the change of the water volume in the pool body 1, the number of pipes is increased or decreased. If the water volume in the pool body 1 is still increasing or the water level drops slowly, the number of drainage power generation outlet pipes 24 can be increased; if the water level in the pool body 1 reaches the normal water level line or the drainage volume is too large, the number of drainage power generation outlet pipes 24 can be reduced.

[0054] Embodiment 2: As Figure 1 - Figure 12 shown, the embodiment of the present invention provides a water conservancy project flood control device. The diameter of the pressure ring 34 gradually decreases and then gradually increases along the diameter direction of the guide rod 32. The diameters at both ends of the pressure ring 34 are equal. The diameter in the middle of the pressure ring 34 is smaller than the diameter of any other part of the pressure ring 34. The diameter in the middle of the pressure ring 34 is smaller than the diameter of the floating plate 36. The pressure ring 34 is made of elastic material.

[0055] After the water level in the power generation outlet pipes 24 rises, the buoyancy received by the floating plates 36 increases, and the floating plates 36 move upward along the axis direction of the guide rods 32. The floating plates 36 slide along the arc surface of the pressure rings 34 and squeeze the pressure rings 34. The pressure rings 34 are made of elastic materials, and the squeezed parts of the pressure rings 34 are continuously compressed. When the water level in the power generation outlet pipes 24 reaches the highest point, the floating plates 36 can be clamped in the middle of the pressure rings 34, and the pressure between the floating plates 36 and the pressure rings 34 is large.

[0056] Move the liquid injection end of the power generation water outlet pipe 24 from the liquid guide plate 6 to the drainage channel. The liquid injection end of the power generation water outlet pipe 24 moves from above the horizontal line to below the horizontal line. The floating plate 36 changes from being located at the top of the power generation water outlet pipe 24 to being located at the bottom of the power generation water outlet pipe 24. During the movement of the power generation water outlet pipe 24, the floating plate 36 is affected by the buoyancy force, but the buoyancy force of the floating plate 36 may not be sufficient to overcome the gravity of the floating plate 36 itself and the pressure of the pressure ring 34, and the floating plate 36 cannot move upward. When the liquid injection end of the power generation water outlet pipe 24 is placed in the drainage channel, the water in the power generation water outlet pipe 24 squeezes the floating plate 36 downward. The pressure received by the floating plate 36 is much greater than the buoyancy force received by the floating plate 36 when it was clamped in the middle of the pressure ring 34 before. The floating plate 36 breaks through the blockade of the pressure ring 34, and the floating plate 36 moves along the guide rod 32 to the outside of the power generation water outlet pipe 24, and the floating plate 36 no longer seals the liquid injection end of the power generation water outlet pipe 24.

[0057] When removing the floating plate 36 from the power generation water outlet pipe 24, Method 1: The central position on the side of the floating plate 36 away from the pool body 1 can be connected to the bottom of the liquid guide pipe through a rope body, and the floating plate 36 can be pulled out from the pressure ring 34 through the rope body; Method 2: Control the movement of the floating plate 36 through the buoyancy force, its own gravity, and the pressure between the floating plate 36 and the pressure ring 34, so that the floating plate 36 can only move out from the middle of the pressure ring 34 when it is subjected to the downward pressure of water. For the first method, manual assistance is required, which increases the manpower, but has low requirements for the structure and is easy to implement. For the second method, the degree of automation is high, but the precision requirements for the cooperation between structures are high.

[0058] The present invention covers any substitutions, modifications, equivalent methods, and solutions made within the essence and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details have been described in detail in the above preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without these detailed descriptions. In addition, in order to avoid unnecessary confusion to the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0059] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A flood control device for a water conservancy project, characterized in that: include: A power generation water outlet pipe (24), one end of which extends into the pool body (1), and the other end of which is placed on a liquid guide plate (6); a transfer and sealing device (3) is provided at the liquid injection end of each power generation water outlet pipe (24) extending out of the pool body (1); the transfer and sealing device (3) is configured to control the opening and closing of the liquid injection end under the action of buoyancy or pressure; the transfer and sealing device (3) comprises: a guide rod (32); one end of the guide rod (32) is arranged inside the liquid injection end; the guide rod (32) is slidably connected to a floating plate (36); the inner wall of the liquid injection end of the power generation water outlet pipe (24) is connected to a pressure ring (34); a floating control liquid injection device (4) is provided above the liquid guide plate (6); the floating control liquid injection device (4) is used to control water flow into the power generation water outlet pipe (24) under the action of buoyancy.

2. The flood control device for water conservancy projects according to claim 1, characterized in that: The diameter of the pressure ring (34) first gradually decreases and then gradually increases along the direction of the diameter of the guide rod (32); the diameters at both ends of the pressure ring (34) are equal; the diameter of the middle portion of the pressure ring (34) is smaller than the diameter of any other portion of the pressure ring (34); the diameter of the middle portion of the pressure ring (34) is smaller than the diameter of the floating plate (36); and the pressure ring (34) is made of elastic material.

3. The flood control device for water conservancy projects according to claim 1, characterized in that: A filter box (21) is connected to the inner wall of one corner of the tank body (1), a filter hole (22) is formed through the side of the filter box (21), a plurality of equally spaced positioning blocks (23) are connected to the bottom wall of the filter box (21), one end of each power generation water outlet pipe (24) extending into the tank body (1) is connected to a straight pipe (27), and a side of each power generation water outlet pipe (24) is connected to an elastic sealing ring (28), a first fixing plate (25) is installed on one side of the tank body (1), a plurality of equally spaced first holes (26) are formed through one side of the first fixing plate (25), and each of the first holes (26) is connected to an elastic sealing ring (28), a second hole (29) is formed through the middle of one side of the positioning block (23), and the straight pipe (27) is plugged into the second hole (29).

4. The flood control device for water conservancy projects according to claim 1, characterized in that: The floating control injection device (4) comprises: a power generation liquid accumulation box (42), the power generation liquid accumulation box (42) being connected to the top of the end of the liquid guide plate (6) away from the pool body (1) through a connecting block (41), the inner wall of the power generation liquid accumulation box (42) being connected to a partition (43), the partition (43) dividing the inner cavity of the power generation liquid accumulation box (42) into a liquid separation cavity (47) and a liquid accumulation cavity (49), the bottom wall of the liquid accumulation cavity (49) being connected to a floating member (46), and the liquid accumulation cavity (49) being connected to a floating member (46). A first liquid outlet hole (45) is formed through the bottom wall, a filter plate (44) is connected to the top of the power generation liquid accumulation box (42), a plurality of second liquid outlet holes (48) are formed through the bottom wall of the liquid separation chamber (47), and each of the second liquid outlet holes (48) is arranged just above an end of a liquid guide plate (6) away from the cell body (1), and a liquid inlet hole is formed through the partition plate (43), and the diameter of the first liquid outlet hole (45) is greater than the diameter of the second liquid outlet hole (48).

5. The flood control device for water conservancy projects according to claim 4, characterized in that: The floating member (46) comprises: a float (461), wherein the float (461) is arranged in the liquid accumulation chamber (49), a positioning rod (462) is connected to the center of the bottom wall of the liquid accumulation chamber (49), the top end of the positioning rod (462) passes through the inner wall of the float (461) and is slidably connected to the inner wall of the float (461), a support plate (463) is connected to the side of the middle part of the positioning rod (462), the top end of the positioning rod (462) is connected to the baffle (464), the float (461) is connected to the slide plate (467) via a third connecting plate (465), and a guide rail (466) is connected to the side of the partition (43) away from the pool body (1), the guide rail (466) is slidably connected to the slide plate (467), and the slide plate (467) is used to control the opening and closing of the liquid inlet control.

6. The flood control device for water conservancy projects according to claim 3, characterized in that: The included angle between the axis of the straight pipe (27) and the axis of the power generation water outlet pipe (24) is 10-20°, and the injection end of the power generation water outlet pipe (24) is higher than the end of the power generation water outlet pipe (24) extending into the pool body (1).

7. The flood control device for water conservancy projects according to claim 1, characterized in that: The transfer and sealing device (3) further comprises: a second fixing plate (35), wherein the second fixing plates (35) are in total a plurality of pieces, wherein one end of each second fixing plate (35) close to the pool body (1) is connected to one end of the power generation water outlet pipe (24), and one end of each second fixing plate (35) away from the pool body (1) is connected to the side surface of the end of the guide rod (32) away from the pool body (1) through a first connecting plate (31), and the side surface of the other end of the guide rod (32) is connected to a plurality of second connecting plates (33) equidistantly distributed in a circumferential direction, and one side of each second connecting plate (33) is connected to the inner wall of the power generation water outlet pipe (24), and the diameter of the floating plate (36) is smaller than the inner diameter of the power generation water outlet pipe (24).

8. The flood control device for water conservancy projects according to claim 4, characterized in that: When the rainfall is less than the warning rainfall, all the rainwater in the liquid accumulation cavity (49) flows out from the first liquid outlet hole (45); when the rainfall reaches the warning rainfall, the water level in the liquid accumulation cavity (49) rises.

9. A flood control method, comprising the water conservancy engineering flood control device according to any one of claims 1 to 8, characterized in that: One end of a plurality of power generation water outlet pipes (24) is fixed in the pool body (1), and the other end of the power generation water outlet pipe (24) is placed on the liquid guide plate (6). When the rainfall reaches the warning rainfall, the water level in the liquid accumulation chamber (49) rises, the buoyancy of the float (461) increases, the float (461) drives the slide plate (467) to move upward, the slide plate (467) no longer seals the liquid inlet hole, and the rainwater in the liquid accumulation chamber (49) flows into the power generation water outlet pipe (24) in sequence through the liquid separation chamber (47), the second liquid outlet hole (48) chamber, and the liquid guide plate (6). At the same time, all the power generation water outlet pipes (24) are filled with water. The rainwater in the power generation water outlet pipe (24) continues to increase, and the float plate (36) moves along the guide plate under the action of the buoyancy. The rod (32) moves upward in the axial direction and compresses the pressing ring (34). During this process, the air in the power generation outlet pipe (24) is squeezed out and the power generation outlet pipe (24) is kept sealed. The injection end of the power generation outlet pipe (24) is removed from the liquid guide plate (6) and placed in the groove. The water in the power generation outlet pipe (24) tilts downward. The injection end of the power generation outlet pipe (24) changes from being higher than the end of the power generation outlet pipe (24) extending into the pool body (1) to being lower than the end of the power generation outlet pipe (24) extending into the pool body (1). The floating plate (36) in the power generation outlet pipe (24) is removed. The siphon effect is used to assist drainage. The number of drainage power generation outlet pipes (24) is increased according to the drainage situation in the pool.

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